<!DOCTYPE HTML>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<html><head>
  <meta charset="utf-8">
  <title>Reference: overflow:hidden/auto</title>
  <link rel="author" title="Mats Palmgren" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1227162">
  <style type="text/css">
html,body {
  color:black; background-color:white; font-size:16px; padding:0; margin:0;
}

.grid {
  display: grid;
  grid-auto-rows: 5px;
  grid-template-columns: repeat(3, 8px);
  border: 1px solid black;
  grid-row-gap: 4px;
  grid-column-gap: 2px;
  float: left;
}

.grid :first-child { background:lime; }
.grid :nth-child(2n) { border-left:1px solid black; }

x { background: grey;  width:7px; height:5px; }
y { background: blue;  width:7px; height:5px; }
z { background: green; width:7px; height:5px; }

  </style>
</head>
<body>

<div class="grid">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="width:40px; justify-content:center; align-content:center;">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="width:40px; justify-content:start; align-content:end;">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="width:40px; height:40px; justify-content:center; align-content:center;">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="height:40px; justify-content:start; align-content:end;">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="width:8px; grid-template-columns: repeat(1, 8px);">
<x></x>
<y></y>
<z></z>
</div>

<div class="grid" style="height:8px; grid-template-rows: repeat(1, 5px);">
<x></x><x></x><x></x>
</div>

<div class="grid" style="width:8px; height:8px; grid-template-columns: 8px; grid-template-rows: 5px;">
<x></x>
</div>

<div class="grid" style="width:8px; height:8px; justify-content:center;  grid-template-columns: 8px; grid-template-rows: 5px;">
<x style="background:grey; border-left:1px solid black;"></x>
</div>

<div class="grid" style="width:8px; height:8px; align-content:center;">
<y style="background:blue; border-left:1px solid black;"></y>
</div>

<div class="grid" style="grid-template-columns: repeat(3, 12px); justify-items:end;">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="grid-auto-rows: 10px;; align-items:end;">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="grid-auto-flow:column; grid-template-rows: repeat(3, 5px);">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

<div class="grid" style="grid-auto-columns: 12px; grid-template-columns: none; ">
<x></x><x></x><x></x>
<y></y><y></y><y></y>
<z></z><z></z><z></z>
</div>

</body>
</html>
